+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1730 Marceline (1936 UA) Classification: Main-belt Asteroid          SPK-ID: 2001730 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 43 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2226188866857951 1.1448e-08   a 2.786050399545033 7.9856e-09 au q 2.165822961347803 3.1563e-08 au i 9.48882482787304 5.0898e-07 deg node 171.1436025016256 4.0797e-06 deg peri 226.585664898091 6.112e-06 deg M 81.42943613616919 3.2805e-06 deg tp 2459012.296951586262 (2020-Jun-11.79695159) 1.4817e-05 TDB period 1698.56386083349 4.65 7.3028e-06 1.999e-08 d yr n .2119437533678286 9.1123e-10 deg/d Q 3.406277837742262 9.7633e-09 au   Orbit Determination Parameters    # obs. used (total)      3101      data-arc span      32748 days (89.66 yr)      first obs. used      1931-09-15      last obs. used      2021-05-13      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .44488      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 12:43:37   Additional Information  Earth MOID = 1.18393 au   Jupiter MOID = 2.07792 au   T_jup = 3.275  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 11.99   n/a MPO614063   diameter diameter 15.203 km 0.122 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 3.837 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Aymami, J.M. (2011) Minor Planet Bull. 38, 55-56.] [Brinsfield, J.W. (2011) Minor Planet Bull. 38, 73-74.] [Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.] [Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.] [Klinglesmith III, D.A.; Hendrickx, S.; Madden, K.; Montgomery, S. (2016) Minor Planet Bull. 43, 123-128.] geometric albedo albedo 0.192   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   SMASSII spectral type spec_B Xe   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) 1730 Marceline (1936 UA)          Discovered 1936-Oct-17 by Laugier, M. at Nice Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1936 UA = 1931 RE = 1950 WF = 1952 DR2 = 1954 QA = 1971 JC  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jul-29 10:32 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin